FAIR VALUE - Assets and Liabilities at Fair Value (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Assets:
Total assets	$ 699,379	$ 551,997
Quoted prices in active markets for identical assets Level 1
Assets:
Total assets	0	0
Significant other observable inputs Level 2
Assets:
Total assets	0	0
Unobservable inputs Level 3
Assets:
Total assets	699,379	551,997
Mortgage servicing rights
Assets:
Total assets	699,379	551,997
Mortgage servicing rights | Quoted prices in active markets for identical assets Level 1
Assets:
Total assets	0	0
Mortgage servicing rights | Significant other observable inputs Level 2
Assets:
Total assets	0	0
Mortgage servicing rights | Unobservable inputs Level 3
Assets:
Total assets	$ 699,379	$ 551,997